All categories

3 years ago

What's 20 x 12? I NEED HELP

Mathematics

2 answers:

alexira [117]3 years ago

8 0

Answer:

240

Step-by-step explanation:

you multiply 20x12

neonofarm [45]3 years ago

7 0

Answer:

240

Step-by-step explanation:

You might be interested in

Ali went backpacking over the 3-day Labor Day weekend. On Saturday she hiked

ANTONII [103]

21 miles.............

6 0

3 years ago

Consider the following set of vectors. v1 = 0 0 0 1 , v2 = 0 0 3 1 , v3 = 0 4 3 1 , v4 = 8 4 3 1 Let v1, v2, v3, and v4 be (colu

Alona [7]

Answer:

We have the equation

$c_1\left[\begin{array}{c}0\\0\\0\\1\end{array}\right] +c_2\left[\begin{array}{c}0\\0\\3\\1\end{array}\right] +c_3\left[\begin{array}{c}0\\4\\3\\1\end{array}\right] +c_4\left[\begin{array}{c}8\\4\\3\\1\end{array}\right] =\left[\begin{array}{c}0\\0\\0\\0\end{array}\right]$

Then, the augmented matrix of the system is

$\left[\begin{array}{cccc}0&0&0&8\\0&0&4&4\\0&3&3&3\\1&1&1&1\end{array}\right]$

We exchange rows 1 and 4 and rows 2 and 3 and obtain the matrix:

$\left[\begin{array}{cccc}1&1&1&1\\0&3&3&3\\0&0&4&4\\0&0&0&8\end{array}\right]$

This matrix is in echelon form. Then, now we apply backward substitution:

$8c_4=0\\c_4=0$

$4c_3+4c_4=0\\4c_3+4*0=0\\c_3=0$

$3c_2+3c_3+3c_4=0\\3c_2+3*0+3*0=0\\c_2=0$

$c_1+c_2+c_3+c_4=0\\c_1+0+0+0=0\\c_1=0$

Then the system has unique solution that is $(c_1,c_2c_3,c_4)=(0,0,0,0)$ and this imply that the vectors $v_1,v_2,v_3,v_4$ are linear independent.

4 0

3 years ago

Combine like terms and simplify 4r - 6 - 2r + 5

murzikaleks [220]

C. 10r-3

Because 2r+5=7, the minus 6 and 7 which gives you 1 then minus 4 and 1 witch is 3 then you do 10r-3 and it will get you to 2r+5=7 again. I hope this helped!

4 0

2 years ago

-9/8 = v - 1/2<br><br> V = ????

GarryVolchara [31]

Answer: v = -5/8

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Danny selects a glass bottle from the shelf randomly without looking and then tosses the fair coin. What is the probability that

Kryger [21]

How many of each color bottle and how many colors

4 0

3 years ago